<%@ page import="java.sql.Connection" %>
<%@ page import="java.sql.Statement" %>
<%@ page import="java.sql.ResultSet" %>
<%@ page import="java.sql.DriverManager" %>
<%@ page import="java.util.List" %>
<%@ page import="java.util.ArrayList" %><%--
  Created by IntelliJ IDEA.
  User: hasee
  Date: 2018/5/6
  Time: 15:17
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>

    <a href="userAdd.jsp">添加用户</a>

    <table>
        <thead>
        <tr>
            <th>编号</th>
            <th>用户名</th>
            <th>密码</th>
        </tr>
        </thead>

        <tbody>
        <%
            class User{
                int id;
                String username;
                String password;

                public User(int id, String username, String password) {
                    this.id = id;
                    this.username = username;
                    this.password = password;
                }
            }

            List<User> list = new ArrayList<>();

            Connection connection = null;
            Statement statement = null;
            ResultSet resultSet = null;

            String sql = "select * from lab01";

            Class.forName("com.mysql.jdbc.Driver");

            connection = DriverManager.getConnection(
                    "jdbc:mysql://localhost:3306/sctu_javaweb_2018?serverTimezone=UTC",
                    "root",
                    "123456"
            );

            statement = connection.createStatement();
            resultSet = statement.executeQuery(sql);

            while(resultSet.next()) {
                int id = resultSet.getInt(1);
                String username = resultSet.getString(2);
                String password = resultSet.getString(3);

                User user = new User(id,username,password);
                list.add(user);
            }
            resultSet.close();
            statement.close();
            connection.close();

            for (User user : list) {
                out.write("<tr><td>" + user.id + "</td><td>" + user.username + "</td><td>" + user.password + "</td>" +
                        "<td><a href='userUpdate.jsp?id="+user.id+"&username="+user.username+"&password="+user.password+"'>更新</a></td>" +
                        "<td><a href='userDelete.jsp?id=\" + user.id + \"'>删除</a></td></tr>");
            }
        %>
        </tbody>
    </table>
</body>
</html>
